Finding the Fourth Proportional to 121,718.52, 182,427.06 and 68,968.08
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Solution
The fourth proportional to 121,718.52, 182,427.06 and 68,968.08 is: 103,366.72
Step by Step Solution
- Step 1: Write the proportion equation
121,718.52 : 182,427.06 = 68,968.08 : x - Step 2: Convert to fraction form
121,718.52/182,427.06 = 68,968.08/x - Step 3: Cross multiply
121,718.52x = 182,427.06 × 68,968.08 - Step 4: Simplify right side
121,718.52x = 12,581,644,068.24 - Step 5: Solve for x
x = 12,581,644,068.24/121,718.52 - Step 6: Final answer
x = 103,366.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.